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Pattern
^([fst])(\d+[fst])*$
Input
f20s30t
f20s30t
Options
Ignore Case
Ignore Whitespace
Explicit Capture
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Singleline
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ECMA Script
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Regex Info
Table
Context
Split List
1
match found in about
4
milliseconds.
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Permalink
Index
Position
Matched String
$1
$2
0
0
f20s30t
f
30t
2 captures
20s
30t
f20s30t
empty string
f
30t
empty string